diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py
index a5e35d93fd2..d5971226b18 100755
--- a/Parser/asdl_c.py
+++ b/Parser/asdl_c.py
@@ -898,7 +898,7 @@ static int obj2ast_int(PyObject* obj, int* out, PyArena* arena)
         return 1;
     }
 
-    i = (int)PyLong_AsLong(obj);
+    i = _PyLong_AsInt(obj);
     if (i == -1 && PyErr_Occurred())
         return 1;
     *out = i;